First try with opamp and few caps. It is step in right direction.
Re: RISKY MSX Cart - Rev 1 (Beta Release)
Posted: 24 Feb 2025 22:42
by arkadiusz.makarenko
Few small tweaks and I am really happy with the outcome.
Re: RISKY MSX Cart - Rev 1 (Beta Release)
Posted: 25 Feb 2025 12:57
by PhilC
arkadiusz.makarenko wrote: 24 Feb 2025 22:42
Few small tweaks and I am really happy with the outcome.
That music sounds so much better now, well done.
Re: RISKY MSX Cart - Rev 1 (Beta Release)
Posted: 26 Feb 2025 10:03
by arkadiusz.makarenko
From what I can hear I don't have to worry about boosting bass on SCC circuit, but it looks like it would benefit from suppressing high frequencies.
On some PCB builds I can hear slight hiss when working with USB device.
Re: RISKY MSX Cart - Rev 1 (Beta Release)
Posted: 01 Mar 2025 15:28
by arkadiusz.makarenko
I have built whole batch of them. Not too bad, just I don't know If I want to do it too often.
PXL_20250301_151830184.jpg
Re: RISKY MSX Cart - Rev 1 (Beta Release)
Posted: 01 Mar 2025 21:50
by arkadiusz.makarenko
New firmware released. It fixes audio glitches and background noise which was annoying me on flashing pages
It was present only on some boards.Fixed by simply by always configuring DAC , not only for mapper that uses it.
Re: RISKY MSX Cart - Rev 1 (Beta Release)
Posted: 01 Mar 2025 22:36
by PhilC
Cool, will test out tomorrow with the new board :D
Re: RISKY MSX Cart - Rev 1 (Beta Release)
Posted: 02 Mar 2025 12:47
by PhilC
So far so good with V2.02. There was some noise as you'd said before I did the firmware update and that's gone now.
Testing still in progress but this is great, well done.